ENH: remove radarsat 1 and Envisat from ossim

...lude/ossim/imaging/EnvisatAsar/AntennaElevationPatterns.h

...ossim/include/ossim/imaging/EnvisatAsar/ChirpParameters.h

...ude/ossim/imaging/EnvisatAsar/DopplerCentroidParameters.h

...ossim/include/ossim/imaging/EnvisatAsar/EnvisatAsarData.h

...nclude/ossim/imaging/EnvisatAsar/EnvisatAsarDataFactory.h

...sim/include/ossim/imaging/EnvisatAsar/EnvisatAsarRecord.h

...lude/ossim/imaging/EnvisatAsar/EnvisatAsarRecordFactory.h

...ossim/include/ossim/imaging/EnvisatAsar/GeolocationGrid.h

...lude/ossim/imaging/EnvisatAsar/MainProcessingParameters.h

...ties/otbossim/include/ossim/imaging/EnvisatAsar/SQ_ADSR.h

...lude/ossim/imaging/EnvisatAsar/SRGRConversionParameters.h

Utilities/otbossim/include/ossim/imaging/EnvisatAsar/dsd.h

Utilities/otbossim/include/ossim/imaging/EnvisatAsar/mph.h

Utilities/otbossim/include/ossim/imaging/EnvisatAsar/sph.h

...ities/otbossim/include/ossim/imaging/RadarSat/Data/Data.h

...tbossim/include/ossim/imaging/RadarSat/Data/DataFactory.h

.../ossim/imaging/RadarSat/Data/ImageOptionsFileDescriptor.h

...include/ossim/imaging/RadarSat/Data/ProcessedDataRecord.h

...ssim/include/ossim/imaging/RadarSat/Leader/AttitudeData.h

...ude/ossim/imaging/RadarSat/Leader/BeamInformationRecord.h